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Finding the Fourth Proportional to 331,602.40, 497,576.40 and 144,632.80

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Solution

The fourth proportional to 331,602.40, 497,576.40 and 144,632.80 is: 217,024.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,602.40 : 497,576.40 = 144,632.80 : x
  2. Step 2: Convert to fraction form
    331,602.40/497,576.40 = 144,632.80/x
  3. Step 3: Cross multiply
    331,602.40x = 497,576.40 × 144,632.80
  4. Step 4: Simplify right side
    331,602.40x = 71,965,867,945.92
  5. Step 5: Solve for x
    x = 71,965,867,945.92/331,602.40
  6. Step 6: Final answer
    x = 217,024.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.